REV. Status PRELIMINARY 02/21/01 MP IMINARY PRE TELECOMMUNICATION V.90 MODEM TRANSFORMER A. Electrical Specifications (@ 25C) 1. Primary Impedance; 6000 | TTC5004| ow Li co = 2. Secondary Impedance; 3920 3 3. Insertion Loss: 2.20dB MAX @ 1KHz, OdBm 7 4. Frequency Response; +0.25dB @ 200Hz to 4KHz, OdBm a 5. Longitudianl Balance; White dot = 60dB MIN @ 60Hz to 1KHz, OdBm indicates 40dB MIN @ 1KHz to 4KHz, OdBm in 1 6. Return Loss; 20dB MIN @ 200Hz to 4KHz, OdBm P 7. DC Resistance; 8 14):940 +15% 7-10)1189 +15% 8. Turns Ratio; (14):(710)=1:1.0042% 1 , Date 9. Total Harmonic Distortion; 5 Code 88dB MAX @ 600Hz, 10dBm (93dB TYP) Dielectric Strength; 1875V 1 second, PriSec B. Marking; TTC5004, TAMURA, date code and country of origin C. Safety; Complies with UL1950 3rd Edition D. Schematic and Mounting Footprint; 10. PRI SEC 1 eos | 4 7 [" .60[0.063]TYP 1.30[0.051]TYP 41} o too 6000 3920 oO oO ti. . 10 2.54[0.100]1YP = = E. Mechanical Specifications; 13.50[0.532]MAX L 14.00[0.550]TYP fo [| A_\|_L_ hy _| 18.30[0.721]MAX _ tj. 10.40[0.410]MAX ee 2.54[0.1 OOJTYP - 8 PLACES 7D Kt ct a= PREPARED BY: 4 KC cc | D. Rund ENGINEER: Oe oe eset REV TELECOMMUNICATION V.90 M. Pitchai ACAD\TTC\A1125611.0WG IPRE MODEM TRANSFORMER TTC5004 ST ONESS | gonrenrs oF us prawn, ane TAMURA CORPORATION OF MODEL _SPECIPCATION D. Kelley PRIOR NOTICE 43552 ot Bag NE Eee Aeseoae ot DIM: mm(In} SCL: 2/1 | SH: 10 1 APPROVED: J. Coleman PROPRIETARY NOTICE: THIS DRAWING PRINT OR DOCUMENT AND SUBJECT MATTER DISCLOSED HEREIN ARE PROPRIETARY ITEMS TO WHICH TAMURA RETAINS THE EXCLUSIVE RIGHT OF DISSEMINATION, REPRODUCTION, MANUFACTURE AND SALE. THIS DRAWING, PRINT OR DOCUMENT IS SUBMITTED IN CONFIDENCE FOR CONSIDERATION BY THE RECIPIENT ALONE UNLESS PERMISSION FOR FURTHER DISCLOSURE IS EXPRESSLY GRANTED IN WRITING.